Rivet-setting machine.



1). c. SASSEMAN.

RIVET SETTING MACHINE.

APPLICATION FILED OUT. 22, 1913- 1,1 1 49, Patented Nov. 10, 1914.

2 SHEETS-SHEET 1.

' javz'dificzasemqzz mwm THE NORRIS PETERS co PHOIO-LITHQ, WASHING I'ON, D. c.

D. G. SASSEMAN.

RIVET SETTING MACHINE.

APPLICATION FILED OCT. 22, 1913.

Patented Nov. 10, 1914.

2 SHEETS-SHEET 2.

Jigs.

KER

THE NORRIS PETERS CO FHOTO-LITHO,

UNITEDSTAWENT;OFFICE:--.

' DAVID c. SASSEMAN, or RIVER ronns r,*rnnrlvors nssrenon ro HQSMI'JIH MANU; p

FAGTURING COMPANY, or crrrcaeo, ILLINOIS, a oonronA'rrou or rLmnors.

.nrvnrsnr'rnve ivraonrns.

To all ivlzbmit may concern:

Be it known that I,

River Forest, in the, county of Cook and State of Illinois, have invented new and useful Improvements in Rivet-Setting Ma chines, of which the following is a specification, reference being had to the accom-a panyingdrawings, forming a part thereof. The purpose of this invention is *to proat the instant of driving, and with means i for controlling the rate of feed of the rivets from the'source of supplyto such holding means.

It consists of tl1e l features.,and elements dicated in the claims] In the. drawings: Figure described and shown in thedrawings as .in-

1 is a side elevation of certain parts of the rivet setting machine, includingfeatures which are the subJect of this invention. Fig. 21s a front elevation of the parts shown inFig. .1. Fig.

3 is a detail section of the rivet driving plunger and the rivet holder associated therewith. Fig. 4 is a section taken in a plane at right angles to that of Fig. 3, show ing the driving plunger approaching its driving position v and incidentally closing, the rivet feed tube. Fig. 5 is a section taken similarly to Fig. 3 showing the plunger in final driving position. Fig. 6 is a detail section taken as indicated at line 6 6 on 'Fig. 1. Fig. 7 isa detail plan view of the feed-controlling escapement taken looking, in the direction of the arrows 7-.-7 onFig.

1.. Fig. 8 is adetailsection taken. asindicated at line 8 8-onFig. 7. Fig.9, is a:

detail rear elevation of the lower portion of the head, showing certain parts in a diiferent position from Fig. Fig. 10, is an en- "larged Vertical section of one of the holder aws.

jFor the sake of simplicity only the parts of the rivet setting. machine which are:directly concerned with the novel. features hereinafter described have] been included in the drawing. As illustrated in Figs. 1 and.

2 these parts comprise a driver, A, mounted for verticalreciprocation guides, 13 and B and operated from itsupper end'by any convenient linkagegindicated at 1C. The

lower end of the driver,fA, is made hollow Specification of Letters Patent. Patented Nov Application filed October 22, 1913. Serial No. 796,711.

DAVID C. SASSEMAN, a cltlzen ofthe United States, reslding at v to receive the rivetsone at, time just prev -V1OHS bO driving, and the supply tube, D,( from whichthese rivets'are fed to the driver.

is mounted with itslower end in fixed relation to-the driver andcommunicatingwith A 1 end .is guided at B for reciprocation with the hollow portion thereof, while its upper the driver, A. The supply tube,;D, may be;

filled to its capacity with rivets stacked with the shanks pointed downward, theqdiameter of the .tube'being. butlslightly larger than I that of the rivetyheadsgflNear its lowerend the tube, 1), is transversely slotted at ltwo points to permit the insertion'ofdoneor the;

7 and .8

other, of thetwo wings of therescapement 5 7 device, and, in, the, normalv position of the parts the lowest rivet of the stack inthe tube, D, is supported by the catch, E (see 7 F s-1 .2*. ts "'"The escapement deyice,,E, is*formedoff sheet metal stock pivoted for oscillation, I upon, a pimfflEiandwheld .yieldinglyin the normal position above mentioned by means ofa spring, E coiledabout saidpivot. The; notched wing,E is in the same-plane" with the portion ofthe device surroundingthe pivot, E3, while the other wing, 11?, is

formedon an off-set portion, E .and enters above the plane ofthewing, E

, The materi 1 1n which the rivettis itolbe set having first been placed uponthe clencha slotin .the tube,-.- D, at' a; point slightly z j ing anvil, F, the driver, A, is causedto def scend toward the anvilcarrying with-it the holder, G, mounted at. itslower end. As

shown inFigs. 3,4 and 5,,the holder,G, is im "suspendedon' the end of the driver, A, by

means ofthe mouthpiece, H,- which is telescopicallynconnected with the driver by means of the screw,:H ,"engaging the slot, -H ofthe'mouthpiece; by this means,-w hen the-driver makes itsdescending stroke and. the holder, G,- comes'into contact with the material onthe anvil, F, and is supported thereby, the hammer rod, J,,.carried rigidly in" the, end of; the driver, A, will descend,

through the holder, GQ

The descent ofthedriver, A, incidentally causes the depression of the "push rod, K,

whose upperend is provided witha yoke, K ,embracing the driver, A, between a pair of oppositely facing shoulders, A and A formed by" cuttingfa notch in the cylindrical 1 surface the driver rod, A., jiThe lower end 2 i so f of the push rod, K, is beveled at K to operate as a cam against the bent edge, E, of the escapeinent member, E, thereby rotating the latter about itspivot, E and releasing the lowest rivet from the wing, E The notch in the driver, A, however, senough longer than the thlckness of the yoke, K, to

delay the movement of the push rod, K, un-.

driven the next down stroke of the plun ger J.

The purpose of timing the plunger stroke with respect to the escapement as above described is to cause the rivet tot-be delivered to the end of the tube, D that is, where it debouches into the track of the plunger, J as shown in Fig. 4, that is, leaning against the side of the plunger with its axis inclined,

It will be seen that if the rivet delivered in rived at that point before the plunger bethe tubular chute, as seen in Fig. 4, found the end-of the inclined portion, D of the chute opening without obstruction laterally into the'mouth 'piece, H; that is, if it ar gan to close the mouth, itwould be liable to tip over and fallhead-first, or head-edgewise, into'the mouth-piece, and be 'encoun tered by the plunger in position inoperative for riveting; but arriving, as shown in Fig.

4:, against the side of the plunger, and havmg opportunity of escape only as the plunger rises, the lower end being released first while the head is stillstopped against the side of the plunger, the rivet starts downward into the mouth-piece point foremost, as it should, and is well on-its way into the mouth-piece before the head is released;

and when the head is released, it is too late for the rivet to tip over. It willbe seen that this method of delivery permits the use of a tubular conduit for the rivetfdistinguishedffrom slotted track conduits which are frequentlyv employed in machines of this general character;

The swing of the escapement', E, which releas'edthe lowest rivet from the ring, E will have caused the wing, E to temporarily engage and support the-next rivet of the stack, and the return of the escapement, E, to normal position during the upward movement of thedriver, A, will have withdrawn the wing, E from under this second rivet, permitting the rivet to drop into control of the wing, E in position tobe released by the next down stroke of the driver..

I The holder, G, is originally made fror'n a single piece.- its loweraperture, Gflbeing boredoutjto the size of the rivet shank; but, when the holder is medially sawed in two the waste resulting from the saw-cut is sufficient to reduce the width'of the aperture, G when the two parts are mounted in contact so as to prevent the shank of the rivet from depending from the holder until it is forced through the aperture, G by the descent of the hammer rod, J. The two halves or the holder, G, are hinged upon the lower end of the mouthpiece, H, so as to be swung apart by the descent of the hammer, J, as

:the latter en a es theirslooiru interior walls, G but the parts are normally held in contact by an elastic girdle of coiled spring wire, G Thus if very accurate positioni'ng of the rivet in the goods is reui'red, the hammer rod, J, may be forced down only far enough to protrude the shank of the rivet from the yielding jaws of the holder, G, and if it is then desired to shift the goods upon the anvil, F, a slight retraction or the hammer rod will permit the rivet to beforced back into the cavity of the holder, so as not tocatch in the goods and prevent shifting them upon the anvil; and

theholder itself may even be lifted bodilyofi from the goods by reason of its loose connection at the slot, H with the driver, A. Preferably and inorder to permit the ma chine tobe used without the automatic feed device, if desired, the 7 portion, D of the feed tube D, is separate from the preceding portion of the tube and is permanently fixed inthe mouthpiece, H, at the lower end of the driver, A; the fitting, M, which is secured to the lower end of the removable portion of the tube, D, and serves for mounting the escapement device, E, has formed integrally with it a clamp, M adapted to engage the portion D of the ,feed tube, for connecting the two portions of the tube. Thus by releasing the clamp screw, M the upper portion of the tube, together with the escapement, E, may be entirely disconnected and moved out of operative relation to the rest of the machine.

1'. Ina rivet setting machine, a hollow holder for rivets, a hammer rod mounted to reciprocate through said hollow holder for driving a rivet therefrom, the cavity of said holder narrowing downwardly and the lower end thereof being made in parts mounted to separate laterally for releasing the rivet, the lower end portion of the holder being reduced in diameter at a short distance back of the end to-form a neck,

and an endless coiled spring forming an elastic girdle lodged about said neck encircling said separable parts. v I

2. In a rivet setting machine, a driver mounted for'reciprocat'ion, a hammer rod on said driver, a hollow holder for the rivets ;telescopicallyhung on the end of the driver inclosing said hammer rod, a riveti-supply tube mounted to reciprocate with thecholder and communicating laterally with the cavity thereof, and an 'escapement device controllmgjthe "IIVQtS in said supply tube, a'- ranged for actuation by the'relative movement between the telescopically connected driver and'holder, and adapted to feedone rivet to saidholder at each reciprocation'of the driver; 1 g

3.,In a rivet setting "machine, a hollow holder for rivets, a hammer rod mounted to reciprocate through said hollow holderfor driving a rivet therefrom, the holder being piece intowhich thefeed tube opens later adapted to support such rivet in position to be driven, a rivet feed. tube opening into the cavity of the holder between the upper and lower limits of the hammer travel, and arranged to be closed by the hammer rod in its reciprocation, and means for control-f,

ling the rivets in said feed tube, arranged for actuation by said reciprocation of the hammer rod and, adapted to release a r1vet for delivery to the holder while the opening to said holder is closed by the hammer rod. 4. In a rivet-setting machine, in combina tion with a feed tube and a vertical mouthpiece into which the feed tube opens later ally, and from which the mouth-piece extends upwardly, the diameter of the feed tube being approximatelyv equal to that of the rivet heads, permitting the rivets to be cated in the mouth-piece. past the opening of the feed tube thereinto, for driving the rivets there-through, and connections from the driver for operatingthe escapement device to move the lower wing out of the'rivet path while the discharge of the feed tube into the mouthpiece is .closed by the driver.

5. In a rivet setting machine, in combination with a feed tube and avertical mouthally. and from which the mouth--piece ex tends upwardly, the portion ofthe feed tube through which the delivery is made into the mouthpiece being tubular of a diameter. approximately that ofthe rivet heads; an escapem'ent device controlling the feed of the rivets toward the mouth-piece, tocause them to be delivered toward the mouth? piece. one in each cycle of the feeding and 1 riveting action; a driver which'is recipro cated in the mouth-piece past the opening of the feed tube thereinto, for driving the rivets there-through, and connections a from the driverfor operating the escapement device for final releaseof the rivet during thedriving stroke of the driver, and while the piece.

- while the plunger is inposition for said entrance to the. mouth-piece.

latter is in ra poisition closing the discharge mouth ofthe feed tube into 'the' mouth- 6. In a rivet setting machine, in combina-. tion with feed tube and avertical mouththefe'edtube. opens laterally,- andw'fromy whichsaid "feedtube extends upward ob liquely; meansffo'r delivering the rivets one a :by one and separatedly down the oblique dis-3 chargeportion ot the feed tube toward ,the

'70 pieceleadingtoa holder, and intowhichmouth-piece a" driver which reciprocates in the mouth piece past the lateral discharge at thelower portion of its stroke, andmeans p t d, synchronously with said. stroke of the" driver to release rivet for delivery thereof through said oblique portion of the tube while the said discharge opening is closedby the driver. I

7. In a rlvet settln'g machine, in combinapiece into which the feed tube opens laterally, and. fromcwhich it extendsupward I with its lower side at an incline; a plunger operating in the mouth-piece past the'dis-f H as tion with a feed'tube, and a vertical mouthchargeof the feed tube thereinto, adapted at f one position in its stroke to close saidopen-iy ing, and means for delivering the rivetsone at each complete reciprocation of the driver) it into saidportion of the feed'tube leading to the mouthpiece, said means being timed to l f cause such delivery while the driver is clos ing the opening of said tube into the mouth tion with a feed tubehavinga terminal'pon tion extending obliquely-downward, and a vertical mouth piece intowhich it leads later a ally; said tube being cylindrical and of diameter approximating that of'the rivet heads; means for delivering the rivets point-foremost and lodged for sliding in said inclined portion of the tube for arriving one at a time at the; entranceto the mouth-piece, and a' plunger operating in the mouth-pieceand,

therein'to,the meansfor deliveringthe rivets and for reciprocating the plunger i'being rela-. tively timed to cause arivet to be delivered closing 9. In a rivetjsetting machine, in combination with a feed tube in which the rivets are adapted to be stacked end on end, an escape- -ment device for controlling the feed of the lie f adapted ,to close. the opening of thetfube rivets throughthe tube, comprising amember mounted for oscillationonthe tube, ha'v-T .jing tworivet-obstructingmembers extend Ying in planes transverse of the tube,1 and at a distance apartalonggthe path of the rivets H l therethrough, said members beingpositioned with relation to the-axis of oscillation at an I angle to each other whereby the oscillation ofsaid' escapement device to carry one mem j.

her into said path, carries the other member Line, I

out of the path; means yieldingly holding said escapement device at one limit of its range of movement; a mouth-piece to which the rivets are delivered from the feed tube; a driver operating in said mouth-piece and a cam member operatively connected With the driver and positioned for encountering said escapernent device for oscillating 1t toward the opposite limit during the descent of the driver.

:10. Inca rivet setting machine, a driver mounted for reciprocation, a hammer rod on said driver, a hollow rivet holder telescopically hung on the end of the driver r inclosing said hammer rod, ,a rivet supply tube mounted to reciprocate With the holder and openinglaterally into the cavity thereof, v

"an' 'escapement device controlling the rivets 1n said supplytube, means for actuating saidopening of the feed tube is closed by the descent of the hammer rod into the holder.

In testimony whereof I have hereuntoset my hand at Chicago, Illinois, this 17th of October, 1913.

v DAVID C. SASSEMAN.

Witnesses 1 R051. N. BURTON, v EDNA M. MAoIN'rosH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

i 3 Washington, I). 0. 

